![]() ![]() Although we can't hear sounds (much) above 20KHz, we can detect artefacts such as "beats" produced when harmonics are slightly mismatched. It definitely exists and I have a very good understanding of aliasing with respect to computer graphics, but what effect does aliasing really have on an audio signal? In CG it's something that's talked about all the time and there are tons of papers about it, but it seems (from the outside at least) that audio guys only ever talk about aliasing in very hand-wavy terms. Following on from that: the effects of aliasing. What happens when you start combining waves together to create more complex signals? This is pretty important, since any real instrument produces hundreds of harmonics with complex attack and decay properties, so decomposition of the fundamental frequencies won't be as accurate as with toy examples. ![]() ![]() I really hope there's a follow-up at some point, because as someone with a decent amount of experience with computer graphics, but only a fairly general understanding of sampling theorem, the stuff that would naturally come next is what most interests me, namely: ![]()
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